CN200941593Y - Power inversion circuit of six-phase switching reluctance - Google Patents
Power inversion circuit of six-phase switching reluctance Download PDFInfo
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- CN200941593Y CN200941593Y CNU2006201194378U CN200620119437U CN200941593Y CN 200941593 Y CN200941593 Y CN 200941593Y CN U2006201194378 U CNU2006201194378 U CN U2006201194378U CN 200620119437 U CN200620119437 U CN 200620119437U CN 200941593 Y CN200941593 Y CN 200941593Y
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Abstract
The utility model provides a power inversion circuit for a six phase switch magnetic resistance motor system. The utility model is characterized in that the power inversion circuit comprises a three phase inversion bridge formed by six power switches and six fly-wheel diodes which are correspondingly connected in parallel. Output end of each phase of the three phase inversion bridge are separately connected to corresponding two phase windings in six phase wining of the motor, the two phase windings are separately connected in series the guide diodes with reverse direction guiding. The utility model takes advantage of the guide diode to realize direction exchange control of six phases switch magnetic resistance motor through three phase inversion bridge.
Description
Technical field
The utility model relates to the switched reluctance motor control technology, relates in particular to the inverter circuit of power circuit in a kind of control system of six phase switch reluctance motor systems.
Background technology
Alternating Current Governor System as novelty, switch magnetic-resistance motor system compare with existing AC speed regulating motor system and speed adjustable DC motor system have simple in structure, starting current is little, starting torque is big, speed-regulating range width, commutation is quick, control mode is various, functional reliability is good advantage, switch magnetic-resistance motor system successfully is applied to multiple field, has obtained good economy and social effect.
Than three-phase, four phase switch reluctance motor systems developed at present, six phase switch reluctance motor systems have more good low-speed performance, and noise is lower, and the components and parts configuration is more compact, therefore have good development prospect.
The power circuit of present six phase switch reluctance motor systems is made of rectifier power source and power inversion circuit, shown in accompanying drawing 2a, b.Wherein power inversion circuit is six independently brachium pontis, and each brachium pontis is in series by a power switch component and a fly-wheel diode.
For the power circuit of existing six phase switch reluctance motor systems, because six brachium pontis are independent in the control circuit, couple together by bus, both needed to expend more wire rod and artificial, also be easy to produce wiring faults, more crucial is that the junction is easy to cause parasitic couplings, reduces control performance.If therefore the further reasonable disposition components and parts of energy conveniently are connected with the simplification bus, can effectively reduce cost, reduce parasitic couplings, have very big practical and popularizing value.
The utility model content
Problem and defective at existing six phase switch reluctance motor system control circuit technology existence, the purpose of this utility model is to provide a kind of novel power inversion circuit that is applicable to six phase switch reluctance motor systems, to simplify the connection of power inversion circuit, to reduce effectively the parasitic couplings that produces in the circuit and to reduce cost.
The technical solution of the utility model is as follows:
A kind of power inversion circuit of six phase switch reluctance motor systems, it is characterized in that: described power inversion circuit comprise by six power switchs and six fly-wheel diodes corresponding respectively in parallel, forms and has the three-phase inversion electric bridge that three-phase is exported, the two-phase winding that each phase output terminal of described three-phase inversion electric bridge is opposite with ON time in six phase windings of motor is respectively joined, and is serially connected with the opposite steering diode of guiding before this two-phase winding respectively.
Described three-phase inversion electric bridge can be made of three two power switch assemblies or one six power switch assembly.
Described each steering diode can be replaced by the double diode assembly that three semibridge systems connect.
Technique effect of the present utility model is:
By six power switch components and fly-wheel diode are connected into the three-phase inversion electric bridge that three-phase is exported, and utilization is serially connected in the steering diode of each phase winding end, thereby realize six phase invert functions of power inversion circuit, reach the circuit requirement of six phase switch reluctance motor systems.
Owing to adopt the three-phase inversion electric bridge, for existing power inversion circuit, simplify the connection between power switch in the utility model, can effectively reduce cost, reduce parasitic couplings, had very big practical and popularizing value.
Six steering diodes in the utility model power inversion circuit only participate in the electric current commutation, do not participate in the copped wave of power supply, so operating frequency are not high, and cost is lower.
In the utility model power inversion circuit, six power switch components and fly-wheel diode can be used three two power switch assemblies or one six power switch assembly instead.Six steering diodes also can be used three inside double diode assembly of half-bridge form connection instead.The circuit that can further simplify power inversion circuit connects, and reduces parasitic couplings.
Description of drawings
Fig. 1 a is depicted as six phases, 12/10 pole switching reluctance motor structural representation;
Fig. 1 b is the winding schematic diagram of switched reluctance motor shown in Fig. 1 a;
Fig. 2 a is depicted as a kind of schematic diagram of the existing power inversion circuit of six phases, 12/10 pole switching reluctance motor system;
Fig. 2 b is the another kind of schematic diagram of the existing power inversion circuit of six phases, 12/10 pole switching reluctance motor system;
Figure 3 shows that the control signal schematic diagram of six phase switch reluctance motor systems;
Figure 4 shows that six phase power inversion circuit schematic diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 a is depicted as six phases, 12/10 pole switching reluctance motor structural representation, all be embedded with coil on 12 salient poles of stator 1, two relative on circumference coils of extremely going up are together in series or parallel, just constitute a phase winding, total a, b, c, d, six phase windings (shown in Fig. 1 b) such as e, f.This six phase winding has a points of common connection M, can float, and also can link the point mutually that splits of the mid point of rectifier power source or filter capacitor.
Circuit theory diagrams when Fig. 2 a is depicted as six mutually the existing power inversion circuit rectification circuit mid point M of 12/10 pole switching reluctance motor system is not external; Fig. 2 b is depicted as six circuit theory diagrams during the existing power inversion circuit rectification circuit mid point M external power supply zero line N of 12/10 pole switching reluctance motor system mutually.Wherein power inversion circuit is six independently brachium pontis, and each brachium pontis then is in series by a power switch component and a fly-wheel diode.
Power switch component VA, the VC that a, c, e three phase windings are used in six brachium pontis, VE and rectifier power source are anodal to link to each other.The electric current of inflow is provided for winding during the power switch component conducting.The fly-wheel diode afterflow is arranged after the disconnection.Power switch component VB, VD, VE that d, f, b three phase windings are used link to each other with the rectifier power source negative pole.The electric current of outflow is provided for winding during the power switch component conducting.The fly-wheel diode afterflow is also arranged after the disconnection.
Dependence is contained in the angular displacement sensor in the switched reluctance motor and the control circuit of back, just can obtain the control signal of six phase switch reluctance motor systems shown in Figure 3.Signal K1, K2, K3 power controlling switch element SA, SC, SE conducting, signal K1 ', K2 ', K3 ' power controlling switch element SD, SF, SB conducting.
From waveform shown in Figure 3 as seen, a of motor, c, e three phase windings should take turns conducting, differ for 1/3 cycle on the time; At this simultaneously, d, f, b three phase windings also should take turns conducting, also differ for 1/3 cycle on the time; Through tie point M, can constitute current circuit between two groups of windings.
Can also see from waveform shown in Figure 3, all differed for 1/2 cycle between K1 and K1 ', K2 and between K2 ', K3 and between K3 ' phase place, and conducting be not overlapping.Just be based on these characteristics, the utility model power inversion circuit utilizes steering diode can realize that three-phase inversion electric bridge output three-phase signal controls the conducting respectively of six phase windings.
Fig. 4 is shown six phase power inversion circuit schematic diagrams of the present utility model.In this circuit, a in the circuit shown in Figure 2 mutually and d mutually brachium pontis, c mutually and f mutually brachium pontis and e phase and b mutually brachium pontis be together in parallel respectively, the result forms complete three-phase inversion electric bridge.The inversion electric bridge has only three-phase output, and six phase switch reluctance motors need six phase inversions, for head it off, the output of inversion electric bridge is respectively joined with motor two phase windings respectively mutually and be in series with the opposite steering diode of guiding respectively on this two phase winding, as Va, Vb, Vc, Vd, Ve, Vf etc., totally six.
In these six steering diodes, a, c, the e three-phase of inflow current, its steering diode negative electrode connects winding, and anode connects the inversion electric bridge, otherwise will flow out d, f, the b three-phase of electric current, and the anode of steering diode connects winding, and negative electrode connects the inversion electric bridge.
Six steering diodes that the utility model adds only participate in commutation, will participate in the copped wave of power supply unlike power switch component and fly-wheel diode, so operating frequency are not high, and cost is lower.
In addition, in the utility model power inversion circuit, six power switch components and fly-wheel diode also can be used three two power switch assemblies or one six power switch assembly instead.Replace six also available three inside of steering diode double diode assembly of connecting of half-bridge form.
Above-mentioned these assemblies all have the matured product supply on the market, and are both economical and reliable.And adopted these assemblies to constitute after the power inversion circuit, can further simplify the connection of direct current supply bus, the parasitic couplings when having reduced each power switch component work.
The above only is a preferred implementation of the present utility model.Should be pointed out that for a person skilled in the art,, can also make other modification and improvement, but these modification and improvement do not break away from protection range of the present utility model according to invention spirit of the present utility model and essence.
Claims (3)
1. the power inversion circuit of a phase switch reluctance motor system is characterized in that:
Described power inversion circuit comprises by six power switchs and six corresponding respectively three-phase inversion electric bridges with three-phase output that compose in parallel of fly-wheel diode, each phase output terminal of described three-phase inversion electric bridge respectively with six phase windings of motor in corresponding two-phase winding join, and be serially connected with the opposite steering diode of guiding before this two-phase winding respectively.
2. the power inversion circuit of a kind of six phase switch reluctance motor systems as claimed in claim 1 is characterized in that: described three-phase inversion electric bridge can be made of three two power switch assemblies or one six power switch assembly.
3. the power inversion circuit of a kind of six phase switch reluctance motor systems as claimed in claim 1 is characterized in that: described each steering diode can be replaced by the double diode assembly that three semibridge systems connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201194378U CN200941593Y (en) | 2006-09-08 | 2006-09-08 | Power inversion circuit of six-phase switching reluctance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201194378U CN200941593Y (en) | 2006-09-08 | 2006-09-08 | Power inversion circuit of six-phase switching reluctance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941593Y true CN200941593Y (en) | 2007-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201194378U Expired - Lifetime CN200941593Y (en) | 2006-09-08 | 2006-09-08 | Power inversion circuit of six-phase switching reluctance |
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| Country | Link |
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| CN (1) | CN200941593Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499757B (en) * | 2008-02-02 | 2011-05-18 | 北京中纺锐力机电有限公司 | Novel speed regulating apparatus for 3 phase high voltage switch reluctance motor |
| CN103051237A (en) * | 2013-01-22 | 2013-04-17 | 哈尔滨工业大学 | Six-phase eight-bridge arm inverter with high fault-tolerant capability |
-
2006
- 2006-09-08 CN CNU2006201194378U patent/CN200941593Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499757B (en) * | 2008-02-02 | 2011-05-18 | 北京中纺锐力机电有限公司 | Novel speed regulating apparatus for 3 phase high voltage switch reluctance motor |
| CN103051237A (en) * | 2013-01-22 | 2013-04-17 | 哈尔滨工业大学 | Six-phase eight-bridge arm inverter with high fault-tolerant capability |
| CN103051237B (en) * | 2013-01-22 | 2014-12-10 | 哈尔滨工业大学 | Six-phase eight-bridge arm inverter with high fault-tolerant capability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NIDEC (BEIJING) DRIVE SYSTEM TECHNIQUE CO., LTD. Free format text: FORMER OWNER: BEIJING CHINA TEX MECHANICAL + ELECTRICAL ENGINEERING LTD. Effective date: 20150708 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150708 Address after: 101102 Beijing, Tongzhou District Sheng King South Street, No. 13, No. 101, 201-1, 301, 15, Patentee after: Nideke (Beijing) Transmission Technology Co. Ltd Address before: 100176 room A4-7, 14 Zhonghe street, Beijing economic and Technological Development Zone, Beijing, Daxing District Patentee before: Beijing China Tex Mechanical & Electrical Engineering Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |